Since february 1994, he has been the leader of the 612 research group of shanxi institute of coal chemistry, Chinese academy of sciences; since march 2002, he has served as the deputy of the scientific research office of Shanxi institute of coal chemistry, Chinese academy of sciences; from July 2004, he served as an innovative researcher in Shanxi institute of coal chemistry, Chinese academy of sciences. In October 2009, he was transferred to Xi’an institute of optics and precision machinery, Chinese academy of sciences, and served as the director of the applied technology research center of plasma physiochemistry and the composite technology center.